JP2009293164A - Bobbin carrier for braider - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the productivity of braiders by automatically and simultaneously carrying out tension setting or changing of a group of bobbin carriers disposed in a braider. <P>SOLUTION: A bobbin and a tension regulating means for regulating the tension of a yarn line delivered from the bobbin are installed in each of the bobbin carriers disposed on the inner surface of a cylindrical frame. The tension regulating means is configured to comprise a torque motor, and gears for transmitting rotation power of the torque motor to the bobbin shaft. A radio dispersion control unit for controlling the driving state of the torque motor is installed in each of the group of bobbin carriers. A coil on the power supply side is disposed in a guide plate of the frame, and a coil on the receiving side is disposed in a carrier shoe of the bobbin carrier to supply a driving current in a non-contact state through both the coils. A control signal is sent to the radio dispersion control unit with an infrared transmitter to simultaneously carry out tension setting etc., of the group of bobbin carriers. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a bobbin carrier that supports a bobbin around which a yarn is wound in a braider. The bobbin carrier is provided with tension adjusting means for adjusting the tension of the yarn.

  A bobbin carrier provided with tension adjusting means is known, for example, from Patent Document 1. There, tension adjusting means is constituted by a tension spring composed of a torsion coil spring and a link mechanism that loosens the spring force of the spring and transmits it to a roller arm of a roller (tension roller). The link mechanism is provided with a link whose link length can be changed. By changing the link length of the link, the tension torque acting on the slack eliminating roller can be changed to a large or small value.

Japanese Patent Laying-Open No. 2008-57058 (see paragraph number 0057, FIG. 3)

  According to the tension adjusting means, the thread tension fed from the bobbin can be changed according to the thread type or the like. However, a single blader is provided with a large number of bobbin carriers. Therefore, it takes a lot of work to change the tension of the yarn by operating the tension adjusting means for each bobbin carrier, which is a great obstacle to improving the productivity of the braider. Also, when applying a weak tension to the yarn corresponding to the forming material, the tension of the yarn is reduced due to the difference in bobbin diameter, the spring force of the tension spring, or slight variations in the link mechanism. There are disadvantages that tend to vary. In this way, if the yarn is wound around the mandrel while the tension is in a dispersed state, the uniform quality cannot be formed, and the yarn may be lifted, over-tightened, or fluffed. It is easy to invite a decline. Sometimes thread breakage occurs. A typical example of the fiber that cannot apply a large tension to the yarn is a ceramic fiber.

The object of the present invention is to automatically set and change the tension of a group of bobbin carriers provided in the blader at the same time, and therefore greatly reduce the labor required for setting and changing the tension, thereby greatly improving the productivity of the blader. It is to improve.
An object of the present invention is to provide a bobbin carrier for a braider in which the tension of the yarn can be set steplessly according to the type of the yarn.
The objective of this invention is providing the bobbin carrier of the braider which can set the tension | tensile_strength of a thread | yarn in two steps according to the difference in forming fiber.

  The bobbin carrier of the present invention is provided with a bobbin and tension adjusting means for adjusting the tension of the yarn fed out from the bobbin on each of the bobbin carriers arranged on the track of the braider. The tension adjusting means is configured using an electric actuator as a drive source. Each of the group of bobbin carriers is provided with a wireless distributed control unit for controlling the driving state of the actuator.

  A guide plate for moving and guiding the carrier shoe of the bobbin carrier is provided on the track. Corresponding to the power transmission side coil disposed on the guide plate, the power reception side coil is disposed on the carrier shoe. Thus, power is supplied to the actuator in a non-contact state via both coils.

  The tension adjusting means includes a torque motor and a gear that transmits the rotational power of the torque motor to the bobbin shaft.

  The tension adjusting means is configured using a motor as a drive source, and a battery serving as a power source for the motor is provided on the bobbin carrier. The battery is always charged by the power source supplied from the power supply unit, and when a large current is required, the battery also supplies power.

  The tension adjusting means includes a tension roller that is swingably supported, a ratchet mechanism that intermittently rotates the bobbin in conjunction with the swing of the tension roller, a tension spring that moves and urges the tension roller, and a tension spring A motor and a speed reducer for switching the urging force, and a position holding mechanism for holding the tension spring with the urging force switched at each switching position.

  A transmitter that transmits a control signal to the wireless distributed control unit is configured by an infrared transmitter using infrared as a signal transmission medium.

  In the bobbin carrier of the present invention, the tension adjusting means is configured by using an electric actuator as a driving source, and a wireless distributed control unit for controlling the driving state of the actuator is provided in each bobbin carrier. When performing tension adjustment, an operation command signal and a control signal are transmitted from the wireless transmitter to the wireless distributed control unit. The wireless distributed control unit controls the operating state of the actuator according to the received content, and adjusts the tension of the yarn fed out from the bobbin to a predetermined state. Thus, according to the bobbin carrier of the present invention, it is possible to automatically and simultaneously set and change the tension of a group of bobbin carriers provided in the braider. Accordingly, the labor required for setting and changing the tension of the yarn can be significantly reduced, and the productivity of the braider can be remarkably improved.

  According to the bobbin carrier in which the power transmission side coil is disposed on the guide plate and the power reception side coil is disposed on the carrier shoe, the drive current of the actuator can be stably supplied to the bobbin carrier via both coils in a non-contact state. Therefore, for example, compared to a case where a battery is used as a power source, the braider can be operated continuously for a long time, and the productivity of the preform can be improved accordingly. Further, since the current is supplied in a non-contact state, there is no possibility of a short circuit even when an electrically conductive yarn such as carbon fiber is supplied, and the braider can be operated in a safe state.

  According to the tension adjustment means consisting of a torque motor and a gear that transmits the rotational power of the torque motor to the bobbin shaft, the tension of the yarn can be changed and set to an unrestricted level simply by controlling the voltage supplied to the torque motor. it can. Therefore, even when the yarn thickness and the forming material are variously different, the yarn can be supplied while applying an optimum tension to each yarn, and a uniform set of preforms can be formed. Winding defects such as yarn lifting, overtightening, and fluffing can be eliminated. Further, even when the tension applied to the yarn is weak and a very slight variation tends to appear as a large tension fluctuation, the tension can be adjusted accurately.

  When the bobbin carrier is provided with tension adjustment means that uses a motor as the drive source and a battery that serves as the motor's power supply, the tension setting and changes of a group of bobbin carriers are automatically performed simultaneously, as with the previously described blader. Can be done. As a result, the labor required for setting and changing the tension can be significantly reduced, and the productivity of the braider can be greatly improved. In addition, even in the case of a conventional braider, the bobbin carrier can be applied without the need to change the structure or add a new structure, so that it is possible to reduce the cost of introducing a braider that can automatically adjust the tension.

  According to the tension adjusting means including a tension roller, a tension spring, a ratchet mechanism, and a motor and a speed reducer for switching the urging force of the tension spring, the tension of the yarn can be set in two levels. Alternatively, the yarn can be fed in either a tensioned state or an unloaded state. Therefore, even when the thickness of the yarn and the forming material are greatly different, it is possible to appropriately form a predetermined preform by applying a suitable tension to each yarn shape or feeding it in an unloaded state. In addition, since the tension spring whose urging force has been switched is held by the position holding mechanism at each switching position, it is only necessary to drive the motor only when necessary. Can be used.

  If the transmitter that transmits the control signal to the wireless distributed control unit is configured with an infrared transmitter, it is advantageous in that there is no malfunction of the actuator due to interference or radio wave interference compared to a wireless transmitter that uses electromagnetic waves as a signal transmission medium. is there.

First Embodiment FIGS. 1 to 7 show a first embodiment of a bobbin carrier according to the present invention. 2 and 3 conceptually show the structure of the braider. In FIG. 2, the braider is composed of a braider body 1 and a mandrel support device (not shown) that controls the position and posture of a mandrel 2 disposed in the central portion of the braider body 1. The braider body 1 includes a cylindrical machine base 3 that opens toward the mandrel support device, and a partially spherical guide plate 4 is disposed on the inner surface thereof, along the inner peripheral surface of the guide plate 4. A group of bobbin carriers 5 is provided. As shown in FIG. 4, the guide plate 4 is formed with intersecting corrugated tracks 6, and a group of bobbin carriers 5 are moved along the track 6 with a drive structure (not shown), thereby the yarn Y Can be wound around the mandrel 2 while crossing. As shown in FIG. 2, a group of bobbins 7 are also arranged around the section adjacent to the guide plate 4, and the yarn Y fed out from these bobbins 7 is also wound around the mandrel 2 at the same time.

  In FIG. 5 and FIG. 6, the bobbin carrier 5 is configured by using an L-shaped first frame 11 and an inverted L-shaped second frame 12 as a basic structure. A carrier shoe 13 that moves along the track 6 is provided. As shown in FIG. 5, the frames 11 and 12 are provided with a bobbin shaft 15 for supporting the bobbin 14, tension adjusting means for the yarn Y fed out from the bobbin 14, and the yarn Y toward the yarn guide 16 at the upper end. First and second guide rollers 17 and 18 are provided for guiding the direction change. The bobbin shaft 15 is rotatably supported by a bearing 19 fixed to the outer surface of the first frame 11 (see FIG. 7).

  In the upper part between the first and second frames 11 and 12, a power feeding unit 20 and a wireless distributed control unit 21 are provided. A carrier-shaped core 22 and a power receiving side coil 23 wound around the core 22 are embedded in the carrier shoe 13. In order to supply power to the power receiving coil 23 in a non-contact state, a power transmission coil 24 is disposed along the track 6 inside the guide plate 4 facing the core 22. An alternating current is passed through the power transmission coil 24, and an induction current can be generated in the power receiving side coil 23 in a non-contact state.

  The current flowing through the power receiving side coil 23 is converted into a direct current by the power supply unit 20, and then the battery is charged. The reason for converting the direct current to charge the battery is to make up for the fact that the power transmission coil 24 is interrupted at the intersection of the tracks 6.

  1 and 5, the tension adjusting means includes a torque motor (actuator) 27 disposed on the outer surface of the second frame 12 and three gears 28, 29, which transmit the rotational power of the torque motor 27 to the bobbin shaft 15. 30. The gear 28 is fixed to the output shaft of the torque motor 27, and the rotational power is transmitted to the gear 30 fixed to the bobbin shaft 15 via the intermediate gear 29.

  By adjusting the voltage applied to the torque motor 27 in accordance with the control content of the wireless distributed control unit 21, the rotational state of the bobbin 14 is controlled, and the yarn Y fed out from the bobbin 14 is moderately appropriate. Can be applied. Since the bobbin shaft 15 and the bobbin 14 are connected via two torque pins 31 provided separately from the bobbin shaft 15, the bobbin 14 does not run idle, and the tension defined by the torque motor 27 is applied. It can be reliably applied to the yarn Y. As shown in FIG. 6, a guide frame 32 and a yarn guide 33 for guiding the yarn Y fed from the bobbin 14 toward the first guide roller 17 are provided at one side and two places above the torque motor 27. It is provided.

  As described above, according to the bobbin carrier 5 provided with the tension adjusting means using the torque motor 27 as the drive source, the tension of the yarn Y fed out from the bobbin 14 can be kept constant without any variation. Uniform stitches can be formed on the reform. In addition, it is possible to wipe out winding defects that lead to deterioration of the quality of the preform, such as the yarn Y being lifted, overtightened, or fluffing. Even when the tension applied to the yarn Y is weak and a very slight variation tends to appear as a large tension fluctuation, the tension adjustment can be suitably performed without any problem. There is no thread breakage. If necessary, the state where the torque motor 27 is energized can be switched between a state where the tension of the yarn Y is adjusted and a state where the tension is not adjusted.

  When the bobbin 14 is replaced and the yarn Y having a different thickness or material is wound around the mandrel 2, the setting of the torque motor 27 is changed according to the thickness of the yarn Y or the material. In this embodiment, infrared rays are transmitted from an infrared transmitter (not shown) to change the control content of the wireless distributed control unit 21 provided on each bobbin carrier 5. Thereby, compared with the conventional apparatus in which the operator has to change the link length for each individual bobbin carrier, it is possible to automatically and collectively set and change the tension of the group of bobbin carriers 5. Therefore, the labor required for setting and changing the tension of the bobbin carrier 5 can be saved remarkably, and the productivity of the braider can be significantly improved. Further, since the tension of the yarn Y can be set steplessly within the range of the maximum torque and the minimum torque of the torque motor 27, even when the material and the thickness of the yarn Y are changed in various ways, it is possible to respond appropriately. The infrared receiver is incorporated in the wireless distributed control unit 21.

  The bobbin carrier 5 in the above embodiment can be added with a yarn break sensor, a yarn remaining amount sensor, and an acceleration sensor. Furthermore, an infrared transmitter can be arranged on each bobbin carrier 5 in order to output the detection signal of each sensor to the control device of the braider. The acceleration sensor is provided to detect the rattling of each component provided on the bobbin carrier 5 and to know the time for maintenance or replacement of the component. The yarn break sensor is arranged facing the feed path of the yarn Y between the bobbin 14 and the yarn guide 16. Further, the yarn remaining amount sensor is arranged facing the peripheral surface of the bobbin 14. The tension state of the yarn Y can be detected by a sensor and output to the control device together with the detection signal of each sensor.

  As described above, if information such as yarn breakage, remaining yarn amount, or part replacement timing can be transmitted from the bobbin carrier 5 to the control device, various abnormalities are detected early and the yarn Y is always in an appropriate state. Can be wound around the mandrel 2, thus preventing the occurrence of preform defects and improving the productivity of the braider.

Second Embodiment FIGS. 8 to 16 show a bobbin carrier according to a second embodiment of the present invention. In the above embodiment, the current is supplied from the braider body 1 through the power transmission coil 24 and the power reception coil 23. In this embodiment, the battery 35 incorporated in the bobbin carrier 5 is used as a power source, and the tension is supplied. The motor 38 serving as a drive source for the adjusting means is driven. Further, the tension adjusting means itself was configured to be able to change the tension applied to the yarn Y in two steps of strength and weakness according to the difference in the formed fibers.

  8 and 9, the tension adjusting means includes an adjusting mechanism including a tension spring 36 and a tension roller 37, a switching mechanism using a motor (actuator) 38 and a speed reducer 39 as drive sources, and a position for holding the tension spring 36 in position. It consists of a holding mechanism.

  The adjustment mechanism includes a tension roller 37 that is swingably supported, a ratchet mechanism that intermittently rotates the bobbin 14 in conjunction with the swing of the tension roller 37, a tension spring 36, and a spring force of the spring 36. A gear structure for transmitting to the tension roller 37 is used. As shown in FIG. 10, the tension roller 37 is rotatably supported by a U-shaped tension arm 41, and the base end of the tension arm 41 is fixed to the gear shaft 43 of the gear 42. The yarn Y fed out from the bobbin 14 is wound around the third guide roller 44 in a reverse manner via the guide frame 32 and the yarn guide 33, and further wound around the tension roller 37 in a reverse shape, and then the first guide. The roller 17 guides the transfer toward the yarn guide 16 (see FIG. 8).

  The tension spring 36 is a torsion coil spring and is housed in a case 46 fixed to the outer surface of the second frame 12 together with a motor 38 and a speed reducer 39 (see FIGS. 11 and 14). One end of the tension spring 36 is hooked to a holding claw 62 of a position holding mechanism provided on the outer surface of the protruding end of the case 46, and the other end is hooked to a sector gear 47 that meshes with the gear 42. Thereby, the spring force of the tension spring 36 can be transmitted to the tension arm 41 via the sector gear 47, the gear 42, and the gear shaft 43.

  The ratchet mechanism resists the ratchet wheel 49 that rotates along with the bobbin shaft 15, the ratchet pawl 51 that engages and disengages with the pawl portion 50 of the ratchet wheel 49, the spring 52 that urges the ratchet pawl 51 to rotate, and the spring 52. And a release arm 53 for opening the ratchet pawl 51 (see FIGS. 10 and 12). The release arm 53 is formed integrally with the fan-shaped gear 47 described above, and by partially rotating in conjunction with the swinging displacement of the tension roller 37, the ratchet pawl 51 is swung to engage the pawl portion 50. Release the engagement.

  As shown in FIG. 12A, when the tension roller 37 is farthest from the third guide roller 44, the ratchet claw 51 engages with the claw portion 50 to restrict the rotation of the bobbin 14 in the feeding direction. Yes. When the yarn Y is unwound from this state, the tension roller 37 follows the yarn Y and swings in the direction of arrow a. At the same time, since the tension arm 41 swings in the same direction, the gear 42 rotates in the direction of arrow b, and the sector gear 47 rotates in the direction of arrow c. Then, as shown in FIG. 12B, when the tension roller 37 is oscillated and displaced between the first guide roller 17 and the third guide roller 44, the ratchet pawl 51 is oscillated by the release arm 53. Thus, the engagement between the release arm 53 and the claw portion 50 is released. At this time, the tension spring 36 is wound by the amount that the sector gear 47 is partially rotated.

  Simultaneously with the release of the engagement between the release arm 53 and the claw portion 50, the bobbin 14 receives the tension of the yarn Y and rotates in the arrow d direction (feeding direction) to feed the yarn Y. When the yarn Y is fed out, the tension of the yarn Y in the peripheral portion of the tension roller 37 is abruptly reduced. Therefore, the sector gear 47 is rotated in the direction of arrow e by the urging force of the tension spring 36, and the gear 42 is rotated in the direction of arrow f in conjunction with it. As a result, the tension arm 41 swings in the direction of the arrow g and returns to the position shown in FIG. At the same time, the ratchet pawl 51 returns to the engaging posture and engages with the pawl portion 50 of the ratchet wheel 49 again. Thereafter, the above operation is repeated to keep the tension of the yarn Y constant.

  The switching mechanism is composed of a DC motor 38 and a speed reducer 39 capable of forward / reverse rotation, and a cam panel 55 fixed to the output shaft of the speed reducer 39. As shown in FIG. 13, the cam panel 55 is provided with a spring receiving claw 56 that receives one end of the tension spring 36 in cooperation with the holding claw 62 and a cam 57 that swings the holding claw 62. The cam 57 is formed with a semicircular first cam surface 58 and a mountain-shaped second cam surface 59.

  As shown in FIG. 13, the position holding mechanism includes a holding claw 62 that is swingably supported by a shaft 61, and a holding spring 63 that presses and biases the holding claw 62 against the cam 57. A petal-like hooking portion 64 is provided at the swinging tip of the holding claw 62, and a spring receiving portion 65 for receiving one end of the tension spring 36 is formed on the neck portion of the peripheral surface thereof. In addition, a partial arc-shaped first sliding surface 66 and a linear second sliding surface 67 are formed on the peripheral surface of the latching portion 64 that is continuous with the spring receiving portion 65.

  A wireless distributed control unit 21 is disposed on the top of the bobbin carrier 5 and a battery 35 is disposed on the bottom thereof. An infrared receiver is incorporated in the wireless distributed control unit 21. Since others are the same as the above-mentioned embodiment, the same numerals are given to the same member and the explanation is omitted.

  Next, the tension switching operation of the yarn Y by the switching mechanism will be described. For example, the tension of the yarn Y is set strong for carbon fibers and weakly set for ceramic fibers. In either case, one end of the tension spring 36 is received by a spring receiving portion 65 of a holding claw 62 as shown in FIG. It has been. When changing the tension of the yarn Y, an infrared ray including a control signal is transmitted from the infrared transmitter, and an operation command signal is transmitted to the wireless distributed control unit 21 provided on each bobbin carrier 5.

  When switching the tension to a weak state, the cam 57 is rotationally driven in the direction of arrow h as shown in FIG. Then, the first sliding surface 66 of the holding claw 62 that has been in contact with the second cam surface 59 is pushed out in the arrow j direction against the holding spring 63 on the first cam surface 58. At the same time, as indicated by an arrow k in FIG. 15B, the spring end of the tension spring 36 gets over the first sliding surface 66 to release the engagement with the holding claw 62.

  Simultaneously with the end of the spring climbing over the first sliding surface 66, the holding claw 62 is returned and swung by the holding spring 63, and the first sliding surface 66 moves around the cam 57 as shown in FIG. Make contact with the face. Subsequently, the cam 57 is rotationally driven, and the motor 38 is stopped in a state of one rotation from the state of FIG. 13, whereby the spring end of the tension spring 36 is displaced by one turn in the loosening direction and It is received by the spring receiving portion 65. As described above, the tension spring 36 is switched from a strong state to a weak state. While the cam 57 rotates once, the holding claw 62 is displaced following the cam surfaces 58 and 59, but the movement is meaningless.

  When the tension is switched from a weak state to a strong state, the cam 57 is rotated from the state of FIG. 13 in the direction of arrow m as shown in FIG. 16A according to the operation command signal oscillated from the wireless distributed control unit 21. To drive. Then, the first sliding surface 66 of the holding claw 62 that has been in contact with the second cam surface 59 is pushed out in the direction of the arrow n against the holding spring 63 on the first cam surface 58. At the same time, the spring end of the tension spring 36 accompanies the spring catch 56 and is displaced in the same direction as the rotational direction m of the cam 57. After this state, the holding claw 62 is received by the first cam surface 58.

  As shown in FIG. 16B, when the cam 57 rotates from the state of FIG. 13 to nearly one rotation, the spring end of the tension spring 36 contacts the second sliding surface 67 and the entire holding claw 62 is moved. It swings in the direction of the arrow p against the holding spring 63. Further, the spring end is displaced to a position over the first sliding surface 66 as shown in FIG. When the motor 38 is stopped in this state, the spring end and the cam 57 are displaced in the direction of the arrow q (relaxation direction) by the urging force of the tension spring 36, so that the spring end is again held by the holding claw 62 and the spring receiving claw 56. Thus, the state shown in FIG. 13 is maintained. As a result, the spring end of the tension spring 36 is tightened by one turn in the tightening direction, and the tension spring 36 is switched from a weak state to a strong state.

  As described above, according to the bobbin carrier 5 of the second embodiment, similar to the bobbin carrier 5 of the first embodiment, the tension of the group of bobbin carriers 5 can be automatically changed all at once. Therefore, the labor required for changing the tension of the bobbin carrier 5 can be saved significantly, and the productivity of the braider can be significantly improved. In addition, since the holding claw 62 maintains the state in which the tension of the tension spring 36 is switched between strong and weak, it is only necessary to drive the motor 38 only when necessary. 35 can be used. The battery 35 may be replaced or charged when the bobbin 14 is replaced.

  FIG. 17 shows another embodiment of the power feeding structure in the first embodiment. There, a power transmission coil 24 is arranged along the inner side of the track 6 so that an induced current can be generated in the power receiving side coil 23 provided on the bobbin carrier 5. Thus, the power transmission coil 24 may be provided on either the outer edge or the inner edge of the track 6. If necessary, the power transmission coil 24 can be provided on both the outer edge and the inner edge. Since others are the same as the above-mentioned embodiment, the same numerals are given to the same member and the explanation is omitted.

  As exemplified in the first embodiment, it is preferable to adjust the tension of the yarn Y by using the torque motor 27 as a drive source. However, if necessary, other types of motors such as a step motor and solenoids may be used. Tension adjustment can be performed using an electric actuator as a drive source. The transmitter that transmits the operation command signal to the wireless distributed control unit 21 does not need to be an infrared transmitter or an infrared remote controller, and may be a wireless remote controller or a wireless transmitter. An ultrasonic remote controller using ultrasonic waves as a signal transmission medium may be used. The battery 35 in the second embodiment can be arranged inside each bobbin 14. The present invention can also be applied to a braider in which the bobbin carrier moves along a planar trajectory.

It is a vertical front view which shows the tension adjustment means in a bobbin carrier. It is a vertical front view which shows schematic structure of a braider. It is a side view which shows schematic structure of a braider. It is a cross-sectional top view which shows the relationship between a bobbin carrier and a track | orbit. It is a side view of a bobbin carrier. It is a front view of a bobbin carrier. It is a vertical side view which shows a tension adjustment means. It is a front view of the bobbin carrier which concerns on 2nd Example. It is a side view of the bobbin carrier concerning the 2nd example. It is a disassembled front view of a bobbin carrier. It is a side view which shows the principal part of a tension adjustment means. It is operation | movement explanatory drawing of a ratchet mechanism. It is a front view which shows a switching mechanism and a position holding mechanism. It is the sectional view on the AA line in FIG. It is operation | movement explanatory drawing of a switching mechanism and a position holding mechanism. It is another operation | movement explanatory drawing of a switching mechanism and a position holding mechanism. It is a cross-sectional top view which shows another Example of the electric power feeding structure which concerns on 1st Example.

Explanation of symbols

3 Machine stand 4 Guide plate 5 Bobbin carrier 13 Carrier shoe 14 Bobbin 21 Wireless distributed control unit 23 Power receiving side coil 24 Power transmitting side coil 27 Actuator (torque motor)
Y yarn

Claims (6)

Each bobbin carrier arranged on the trajectory of the brader is provided with a bobbin and a tension adjusting means for adjusting the tension of the yarn fed out from the bobbin.
The tension adjusting means is configured using an electric actuator as a drive source,
Each of the group of bobbin carriers is provided with a wireless distributed control unit for controlling the driving state of the actuator. A guide plate for moving and guiding the carrier shoe of the bobbin carrier is provided on the track,
Corresponding to the power transmission side coil disposed on the guide plate, a power reception side coil is disposed on the carrier shoe,
The bobbin carrier for a braider according to claim 1, wherein power is supplied to the actuator through the both coils in a non-contact state.   The bobbin carrier for a braider according to claim 2, wherein the tension adjusting means includes a torque motor and a gear that transmits the rotational power of the torque motor to the bobbin shaft. The tension adjusting means is configured using a motor as a drive source,
The bobbin carrier for a braider according to claim 1, wherein a battery serving as a power source for the motor is provided on the bobbin carrier. A tension roller supported by the tension adjusting means so as to be swingable;
A ratchet mechanism for intermittently feeding and rotating the bobbin in conjunction with the swing of the tension roller;
A tension spring for moving and energizing the tension roller;
A motor and a speed reducer for switching the urging force of the tension spring;
5. The bobbin carrier for a braider according to claim 4, wherein the tension spring with the urging force switched is constituted by a position holding mechanism that holds the tension spring at each switching position.   The bobbin carrier for a braider according to any one of claims 1 to 5, wherein the transmitter that transmits a control signal to the wireless distributed control unit is an infrared transmitter using infrared as a signal transmission medium.

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